Adding so called ‘browns’ to the soil also helps in breaking down/compensate the nitrogen in chicken poop. This is really important to keep the soil healthy and alive with earthworms and other soil life.I added leaves to my run when I built it this year, but hadn't thought about doing that for snow. We don't get a lot of snow, but I'd like to be prepared, so I'll collect up some more this fall and store them. Great idea!